Plant Hormones

What is the function of auxins in plant growth?

• Promote root growth

• Stimulate leaf death

• Promote cell division

• Inhibit fruit growth

What is the role of cytokinins in plant growth?

• Stimulate leaf death

• Stimulate fruit growth

• Inhibit root growth

• Promote cell division

What is the function of gibberellins in plant growth?

• Inhibit stem elongation

• Inhibit fruit ripening

• Trigger germination in dormant seeds

• Inhibit leaf death

What is the role of ethylene in plant growth?

• Inhibit water regulation

• Stimulate seed dormancy

• Inhibit fruit growth

• Stimulate maturation and aging

What is the principal function of abscisic acid in plant growth?

• Stimulate water regulation

• Inhibit plant growth and development

• Promote leaf growth

• Stimulate flower growth

Which plant hormone promotes primary growth by promoting cell elongation and increasing the rate of cell division?

• Ethylene

• Auxins

• Cytokinins

• Gibberellins

Which plant hormone promotes secondary growth and helps to control the rate of branching by a plant?

• Cytokinins

• Auxins

• Gibberellins

• Ethylene

Which plant hormone triggers germination in dormant seeds?

• Gibberellins

• Auxins

• Ethylene

• Cytokinins

Which plant hormone is responsible for the ripening of certain fruit?

• Cytokinins

• Gibberellins

• Auxins

• Ethylene

Which plant hormone controls the closing of stomata and regulates water loss in plants?

• Abscisic Acid

• Auxins

• Gibberellins

• Cytokinins